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Dave Kleikamp authored
This reverts commit 145e1c00. This commit broke the behavior of __copy_from_user_inatomic when it is only partially successful. Instead of returning the number of bytes not copied, it now returns 1. This translates to the wrong value being returned by iov_iter_copy_from_user_atomic. xfstests generic/246 and LTP writev01 both fail on btrfs and nfs because of this. Signed-off-by:
Dave Kleikamp <dave.kleikamp@oracle.com> Cc: Hugh Dickins <hughd@google.com> Cc: David S. Miller <davem@davemloft.net> Cc: sparclinux@vger.kernel.org Signed-off-by:
David S. Miller <davem@davemloft.net>
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